Like very small tasks that don't have to steep of a learning curve and that may help in getting game out. Small tasks that may have to be done more than once or that can serve to solve a larger problem? And I don't mean stuff like "Give us a like on Steam or give us a like on IndieDB, or applaud next to your monitor at home". Something that actually helps develop a certain small aspect of the game.
Try to spread the word that we're looking for more, self-motivated people who want to have a nice game on their resume. We're mostly looking for programmers, but extra artists are also wanted for Asylum.